* feat(usage): route claude-cli to Anthropic plan usage with plan label and billing
* feat(webchat): redesign context popover with plan-usage bars and API-cost gating
* fix(usage): match plan usage across CLI provider aliases and source plan label from synced auth profile
* docs(plugins): document plan metadata on usage auth token
* chore(usage): document provider-level billing attribution limits, fix overview test types
* fix(webchat): avoid map-spread in quota group collection
* test(webchat): deflake subscription popover reset fixture